Talking-machine attachment.



W. vA. CHAPMAN. TALKING MACHINE ATTACHMENT. APPLICATION FILED JULY 2, 1909i 9635515. Patented Ju1y5,1910.

W. A. CHAPMAN.

TALKING MACHINE ATTACHMENT. APPLIOATION FILED JULY 2, 1909.

963,515. Patented' July 5, 1910.

2 salame-SHEET 2.

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, 'UNTTE-l) STATES PATENT onirica.

WILLIAM ALBERT CHAPMAN, F SMITI-IVILLE, ARKANSAS.

TALKING-MACHINE ATTACHMENT. Y

'TofaZZ whom it may concern:

Be it known that I, WILLIAM ALBERT CHAPMAN, residing at Smithville, inthe county of Lawrence and State of Arkansas, have invented certain new and useful Improvements in Talking-Machine Attachlof -whichthefollowing is a speciiication. l

My invention in `an automa-tic controlling, feeding and cleaning device for attachment to talking machines of the disk type.

Attempts have heretofore been made to provide automatic devices to start and stop the machine by using an arm lfor effecting the tripping of trigger' mechanisms at fixed points by impact, but such devices have not been found practicable in use, since in the designing of devices of that type apparently no regard was had to the wide divergence 1n area covered by thevsound grooves of the ldifferent makes of records, nor even to the ylesser variations occurring among records of thesame manufacturer. Furthermore, in al1 such devices which have come to my attention, no means are provided for adjusting the movement of the sound box carrying .arm and stylus with relation to the width of the "record In the devices above referred to the liability ofthe needle to jump from one record groove to another is increased and no means -is provided whereby the machine, in an emergency, may be stopped by hand.

Itis therefore one of the objects of my in vention to provide a device free from the foregoing defects.

It is also known that a considerable weight, existant in the arm of the horn, and the attached sound box of the machine, 1s supported on the point of the needle, which, in consequence,'is forced into the material of the record, thereby developing a much greater degree of friction than is desirable in the attainment of t-he best results. This excess weight, not' only absorbs much of the power of the driving mechanism, but 1s also an active agent of destruction in breakin@ down the wall of the sound grooves as well as a prolific source of discordant sound that seriously impair the production of harmonic sounds` It 1s further known, that the inner wall of the sound groove is the one most vital in reproduction, and that with use,

where the sound groove alone forms both`\ guide and retainer of the needle point, there results an irregular widening of the groove Specification o f Letters Patent. Application :filed July `2, 1909. Serial No. 505,677.

Patented July 5, 1910.

which admits of play of the needle point and its jumping from one groove to another al ready traversed under the ever present tendeney of the needle, undercentrifugal force,

to'drift toward the outer orperipheral edge of the disk.

It-istherefore a further object -of my invention to counter-balance the weight of the `sound box carrying arm and its attached parts and to utilize a part of such weight to overcome the centrifugal force that tends to drift the needle toward the periphery of the disk, thereby overcoming the objections above noted. It has also been found in practice that where means have been provided for cleaning the record disk such means have usually been applied to the sound box and therefore add to the weight of the sound box, increasing the tendency of the needle to jump from one groove to another and requiring special fittings to adapt the cleaning devices to the sound box, obj ections which my device is designed to eliminate.

More briefiy then it is the object of my in* vention to provide a device free from the aforesaid defects and whereby the acts of starting andstopping of the machine and the-cleaning ofthe disk are rendered automatic in their operation, yet if need be, operative by hand.

My invention also has for its object to accomplish these acts without shock or jar to the driving mechanism and the other operative parts of the talking machine, and to cause the various acts of the various parts of the device to be' sequential'in their operation as well as automatic so that they go `f-1iovel details of construction, combination,

`larrangement and operation of parts, all of through a definite cycle of operations fronr iro which will be first fully described, then be ,specifically pointed out in the appended claims, and illustrated in the accompanying drawiu gs, in which: I

yFigure 1, is a perspective view of my invention in its`normal or inoperative position. Fig. 2, is a front elevation thereof; Fig. f5, is a section on the line 3 3 of Fig.

2. Fig. 4, is a horizontal scction'on the lineA 4 4 of Fig. 2, a part of the rock shaft being broken away to more clearly show the parts beneath. Fig. 5, is a top plan view -illustrating the application fof the invention.

- V Fig. 6, is an end elevation showing the posiings, in which like letters and numerals of reference indicate like parts in all of the figures, '1 represents the base plate which is provided with apertured ears 1;'L at its ends, through the medium of which it may be secured by screws 1b to the `bed of a talking i .machine 100. The base 1 has upturned and 4inturiied flanges 1c which form a channel in which the carriage 2 is longitudinally adjustable. The carriage 2 has one end bent upwardly at right angles to the plane of the carriage, as at 2, and backwardly as at 2b, parallel with the base of the v.carriage 2, the end of the parallel portion 2b being downwardly turned as at 21 parallel with the upturned portion 2, for a purpose presently to appear. The upper section 2b of the carriage 2 hasa forwardly extended bearing 2C for ashaft 1l, hereinafter again referred to'. "The downwardly projected member 2d of the carriage is apertured as at 2e to receive one of the bearings 3 of a rock shaft 3l Whose other bearing 3 is held in an aperture in a bracket 4, whose base 4a is screwed at 4c to the carriage 2,the standard portion of the bracket 4 being slotted as at 4b to permit passage'ofthe rack carrying lever 17, hereinafter again referred to. A setscrew 4d passes through the base 4a of the bracket 4l and. through the carriage 2 to secure it in its adjusted lpositions to the base 1.

5 designates the brake arm which is formed with the rock shaftL 3 and has the outer end 5a cupped to receive the brake pad G 0f leather, or other suitable material. Projecting downwardly from the rock'shaft 3 is' a finger 7 which, when the parts are in their normal or inoperative position, rests against` the rear side ci the base plate l and forms a sired manner.

stop to limit the rotary movement of the shaft 3 in one direction.

8 isa'n arm formed 'with the shaft 8 and for a portion of its length projecting upwardly therefrom as at 8a, and then bent into a loop as at 8 and terminating in a forwardly projecting curved portion 8c, the end 8d of which supports a slide bar 9 which is formed integral with the arm 8, in any deits longitudinal axis parallel to that of the rock shaft 3 andthat of the base 1a while the upper edge 9t of the bar 9 is beveled slightly from the end 9b to the end 9c, for a purpose hereinafter made clear, while the end 9c is undercut as at 91 for a purpose also hereinafter more fully apparent. spring 10 encircles the shaft 3 and has one of its ends 10c hooked around the arm 5 while its other end is bent as at 10a to underlap a lug 2f which is formed with the base 2 and is undercut as at 2gkto receive the spring 10 while .the end 10b of such spring TheA slide bar 9 vis held with- A coil is downwardly bentand passed into an apershaft 11 is squared, asat 11, t receive a mutilated pinion 16 and beneath the squared portion 11C the shaft is again rounded as at 11d to enter the bearing 2h in .the bracket" plate 2k of the carriage 2, see Fig. 3.

Mounted, on the upper end of the shaft 11, `above the plate 21is a turn-table 12 which has lugs 12a apeitured to receive the rod 13I of a brush 13b which rod is held from longitudinal movement by a collar 13a and a second collar 14 that is secured ,to the rod 13 by a set screw 14a, as shown in Figs. 1, 8 and 9 of the drawings. A coil spring 15 is wound aroundthe rod 13 between the lugs 12a andhas one end passed through an aperture in one of the lugs 12a and the other end passed through an aperture in the rod 13, wherebysuch spring will normallyhold the brush 13b in a horizontal position.

17x is a cam projection formed on the plane, when such cam sections 17'# and 14" are brought into contact with one another.

The bar 17, hereinbefore referred to,` lis .projected through the slot 4b.in thel bracket 4 and pivoted at 17a to the base 4*l of such bracket, while the free end of the rack ."bar

'17 4is looped or curved at 17b and provided with a toothed arc segment 17 to coperate with the pinion 1G on the shaft 11, in a inanner hereinafterL explained. Sivivelly connected to the bar 17 is a forked member 18 in which the angle linger 3b of the shaft 3 plays, the linger 3b lying,` in a direction parallel to the shaft 3.

if) is a collar secured to the horn arin o of ille inaehine and having a bearine shoe portion 19 to ride on the slide bar l) in a inanner hereinafter explained.

ln the drawings the turn-table of the tall;- ing inaehine is designated by the reference charaeter 22, and the record disk by the rei.- erence nunieral 23, the recordarea of sound grooves being` indicated by the nuniber 24;.

Having thus described thevgeneral construction ot niy invention, the operation substantially as follows:

@pei-ation: rllhe operator, havingl attached vthe device to his talking inachine, adjusts the Carriage 2 through the niediuin ot' the set screw 4.41 to properly positionthe bar 9, so thatl when the needle 25 is placed in the outer groove ot' the sound record 24, as shown in llig. 5 of the drawings, the clip 19a will rest on the bar 9 adjacent to the end 9b there-otl and softhat when the needle is in the innermost sound groove (see dotted lines in Fig. the shoe 19a ol the Clip 19 will j ust leave the bar t) at the end le. llavini# thus adjusted the device, the set sefevf 9d is tightened down. Now assume tha; it is desired to play a piece, the operator -places the needle 25 in the outer sound groovel oil' the disk 23. Performing this act causes the shoe 19 ot' the clip 19 to engage tle slide bai` 9, which in turn depresses such bar 9 from the position shown in Fig. 7 to that shown in Fig; G, thereby rocking thel rock shaft 3 and releasing the brake device from Contact with the underside of the turn-table Rockingthe shaft 8 in this nianne'r causes the angle finger 3b to rock the rack bar 17 from the position shown in dotted lines in Fig. -l to the position shown in full lines in such figure, thereby turning' the shaft 11 through an angle of 90 degre to bring the brush 18" over the disk 23 into the position shown in Fig. 5. Swinging the brush from the position shown in Figs. 1 and 7 to the position shown in Figs. 5 and 6 Causes the cani member 11ib to engage moni- -ber 17X' and turn the brush rod 13 through an angle of degrees to bring the brish 13 from the horizontal position, shown in F lgs. 1 and 7 to the vertical position, indicated in Figs. o and 6, thereby bringing I l such brush into Contact with the record face of the disk 23. The act of placing the nee'dle in the outer sound groove. as liefor'e stated; releases the brake from beneath the turn-table 22, and this permits the nio- @or vmn-the turntable, in the usual man.-

ner, and as the needle is in contaet With 55 the sound grooves 24e of the dislf; .'23, the record Will be played.

By virtue of the upper tace 99v ot' the slide bar 9, being beveled troni the end 9' towai l the end 9 the weight ot the ai'in 5G and its 70 farried parts (which Weight largely Conni terbalanced by the sprint?v 10) serves to tend to causev 'he aiin 50 to slide doivii the run- Way, troni end i" to end 9, and thus inaiiiA tain the needle .L5 in Contact with the inner Wall of the sound groove of the record disk Q As the needle. '25 approaches the innermost sound groove, the shoe 1S)a will leave the bar 9 and thus perniit the spring 10 to restore the shaft. 3 to its initial position with the 8o brake device in Contact with the underside oit the turn-table and the bar 9 elevated. lle storing the shait 3 to its initial position, the finger will reverse the direction ot nio nient in the rack bar 1'? .vliioh thereby les 85 verses the rotation of the shaft 11 and brings the brush arin 13 troni the position shown in Figs. 5 and G back to the position shown in Figs. 1, 2, and 7 of the drawings, and at the saine' time the cani 1lb will dis 90 engage the eani 17K and pei-init the spring to bring the brush rod 13 haelt to its initial positior as shoivi'i in Figs. l., and 7 of the drawings, thus the talkingl machine v/ill he automatically stopped as the needle a5 25 reaches the end ot the record and the Working parts of my invention Will be ifestored to their initie. positions. ln order to lessen possible ti'iotion between the end 9 of the liar 9 and the shoe 19, when the said 10o shoe leaves Athe bar 9, I bevel. the under surlace of the bar 9 at the end 9, as indicated at 9d, and above referred to. rllhe relative operatioii oi the trains 141 and l? Will be clearly understood by reference to 3.05 Figs-8, i), 10 and 1l of the drawings. las the brush 13D is restored to its initial position after having` been swung` over the disk 23 it Will be automatically cleaned by engagenient with the arn'i as itI enters the 11o loop portion 8" thereot'.

Froni the foregoing description taken "i connection ivi 4i the aeeoinpanying d." i Y, it is thought that thel Complete construction and operation et' my invention Will be readi ily apparent to those skilled the. art, and l Wish to call attention to the rant that my invention Aembodies certain peculiar chai'- acter'istics, nainely,-1st, the acts ot starting and stopping are adjustable with relation to one another and to the Width of the grooved portion of the record and are uniorinly and positively exhibited Without shock or jar to the driving mechanism; 2nd, that all adjustments are made by one simple act,

(through the adjustment ot the carriage 2 by moving such cnriiage when the set serew 4d'1s loosened), anni the @ostative betrad of .ing drifted toward the periphery of the sound disk by centrifugal action is thereby compensated; 4th, that the excessive weight of the horn arm and sound reproducer heretofore supported upon the point of the needle is directly utilized as the operative force of this device and this removal ot' weight is 'effected by utilizing the same as the power for compressing a spring whereby a balance is had between the weight and the spring, the weight being the governing power, 5th, that by neutralizing the weight,

,. the friction between the needle point and the record is reduced and thus the labor o'l the motor is reduced and smoother action had with greater life given the record; (Sth, the province ot' the spring 10 is twofold, lst; it forces the friction or brake block into operative contact with the turntable or" the machine at the proper time to stop the machine and hold it inoperative until the weight of the horn arm is again imposed upon the runway bar, and 2nd; it gives resilient support to the said arm of the horn and sound box; 7th, the arm of the machine may be raised, lowered or swung around without in any way affecting the device, the machine only becoming operative 4when the needle point is placed in one of the sound grooves; 8th, in order to stop the machine while operating, it is only necessary to raise the arm of the horn and thus permit the spring l0 to perform its reversing function and apply the brake.

From the foregoing description it is thought the operation and advantages of my invention will be readily apparent to those skilled in the artto which it appertains.

that l claim is:

l. In a talking machine of the disk type,

resilient means for supporting. the horn and sound box arm and simultaneously tending to move it disk.

2. An attachment for talking machines of the disk type comprising a brake applying means and a disk cleaning means, and means toward the center of the recor governed bythe Weight of the hornlerm for controlling the action of said brakeapplying means and said cleaningjmeans.

3. An attachment for talking machines of `oi" the record disk.

et. In an attachment for talking machines of the disk type,a. brake applying means, a cleaning means controlled by the movement of the brake applying means, a power supplying device connected with said brake applying means for applying the brake, and means carried by said brake applying means for engaging the horn arm of the talkino` machine in virtue of which the weight or said arm will store power into said power applying means and simultaneously release said brake and operate said cleaning means.

5. In an attachmentor talking machines, a brake applying means,means normally tending to operate said brake, combined with means operated by the weight oi the horn arm for releasing said brake, and means for adjusting the time of action of said weight of said horn arm.

6. In an attachment for talking machines oi the disk type, a brake applying means, means normally tending to operate said brake, combined with means operated by the weight of the horn arm for releasing said brake, means for adjusting the timeof action of the weight of said horn arm, and

means normally. tending to moves/ai'dhon/lue lconnections between said disk cleaning means and said brake applying means for moving the disk cleaning means int'o and out of operative position.

' 8. In an attachmentv for talking machines of the disk type, a brakeapplyn'ig. means, means normally tending to operate said brake, combined with means operated by the weight of the horn arm for releasing saidbrake, means for adjusting `the time of a-ction of the weight of said horn arm, means normally tending to move said horn arm in one direction to maintain the stylus needle 1n contact with the inner wall of said groove, together with a disk cleaning means and operative connections between said diskcleanino means and saidVv brake a l infb D means for movingthe disk cleaning means into and out of operative position.

-9. An attachment for a talking machine of the disk type, comprising a baseplate,V

a carriage adjustable thereon, a brake mechansim mounted on said A`carria e, and means normally tending to apply t e brake of said brake mechanism, means'for 'limiting action of said applying means in one direction, and means coperatively connecting. said brake mechanism with the horn arm of a talking machine in virtue of which thel Weight of said arm Will overcome the action of the brake applying means and release said brake. j

10. An attachment for talking machines comprising a base plate, a carriage adjustable' thereon, a brake mechanism mounted 11. An attachment forrtalking machinesv of the disk type, comprising abase plate, a carriage adjustable thereon, a brake mechanism mounted in said carriage, and means normally tending to apply the brake of said brake mechanism, means for limitinePl the action of said applying means in one direction, means cooperatively connecting said brake mechanism with the horn arm of a talking machine in virtue of which the Weight of said arm will overcome the action of the brakeA a plying means and release said brake, a ciieaning mechanism also mounted on said carriage comprising a pivotally mounted brush, connections between said brush and said .brake mechanism for moving said brush from one position to another, and other means for turning said brush on its pivot to bring it into and out of engagement with a record disk.

12. An attachment for talkin machines of the disk type, comprising a ase and a carriage mountedtheveonrsaid..carriage having bearin s, a rock shaft mounted in bearings, a br, e arm carried -by said rock shaft and having a brake shoe, means normally tending to turn said shaft in one direction, means for limiting the turning of said rock shaft in such direction, and another means for coperatively connecting said lrock shaft with the horn arm of the talking machine in vrtaeof which when the horn arm is in position with the stylus or needle operativelyf placed in therecordgrceve, the Weight of said arm will turn said rock shaft in an opposite'direction to release said brake.

13. An attachment for talking machines of the disk type, comprising a base plate, a carriage adjustable thereon, a brake mechanism mounted on said carriage, and means normally tending to apply the brake of said brake mechanism, means for limiting the action of said applying means in one direction, means coperatively connecting said brake mechanism with the horn arm of a talking machine, in virtue of which the Weight of said arm Will overcome the action of thebrake applying means and release said brake, a cleaning mechanism also mounted' on said carriage comprising a turn-table mounted on said carriage and having bearings, a brush carried by said turn-table, and means -coperatively connecting said rock shaft with said turn-table in virtue of which the movement of the rock shaft `will be applied to said turn-table to turn the same.

14. An attachment for talking machines of the disk type, comprising acbase and a earliage mounted thereon, said carriage having bearings, a rock shaft mounted in said bear ings, a brake arm carried by said rock shaft and having a brake slice, means normally tending to turn said shaft in one direction, means for limiting the turning of said rock shaft in such direction, another means for coperatively connecting said rock shaft With the horn armjof the talking machine in virtue of which When the horn arm is in position with the stylus or needle operatively placed in the record groove, the Weight of said arm Will turn said rock shaft in an opposite direction. to release said brake, a turn-table mounted on said carriage and having bearings, a brush carried by said turn-table, and means coperatively connecting said rock shaft With said turntable iin-virtue of which the movement of the rock shaft will be applied to said turn-l table to 'turn the same,

15. An attachment for talking machines of the disk type, comprising a base plate, a carriage adjustable thereon, a brake meehanism mounted on said carriage, and means normally tending to apply the brake of sa'id brake mechanism, means for limiting the Aaction of said applylng means in one direcpiiea' wena tam-fiable to im the' seme,

and means foqturmng said brushjin itsv -having bearings, a rock shaft mounted in said bearings, a brake arm carried by said rock shaft and having a brake shoe, means normally tending to turn said shaft in one direction, means for limiting the lturning of said rock shaft in such direction, another means for cooperatively connecting said rock shaft with the horn arm of the talking machine in virtue of avhich when the horn arm is in position with the stylus or needle operatively placed in the record groove, the Weight of said arm will turn said rock shaft in an opposite direction to release said brake, a turn-table mounted on said carriage and having bearings, a brush carried by said turntable, means cooperatively connecting said rock shaft With said turntable in virtue of Which the movement of the rock shaft will be applied to said turntable to turn the same, and devices connecting said turn-table and said brush for turning said brush in its bearings in said turn-table as said turn-table is moved from one position to another.

17. An attachment for talking machines of thevdisk type, comprising a base plate and a. carriage adj ustahly mounted thereon, said carriage having bearings, a rock shaft mounted in said bearings and having a brake carrying arm, a spring normally tending to turn said rock shaft in one direction, means carried by the rock shaft forengaging said base to limit the turning movement of said vrock shaft, an arm carried by said rock shaft, a slidel vhar carried by said arm, a second shaft mounted in bearings in said carriage, a turntable carried by ssid second shaft and having bearing ears, a brush having a rod portion mounted in said hearing ears, and

' means normally holding` said biush in a definite position, a rack bar pivoted in said carriage and having a rack segment, a pi.n

ion on said second shaft for engaging said rack segment, operative connection between said rock shaft and said rack bar in virtue 'of which the movement of the rock shaft will be imparted to said bar to turn said secondshatt. and means for turning said brush rod in its bearings as said second shaft is turned from one position to another, and an attachment for the horn arm of a talking machine to engage said slide bar to operatively connect said horn arm with said slide bar at times. x

18. .An attachment fon' talkingr machines of the disk type wherein is provided a vertically and laterally movable horn arm, coniprising a brake applying means and a vdisk cleaning means, and means governed by the Weight of the horn arm for moving the disk cleaning means into and *out of operative relation to the disk and for controlling the action of said brake applying means.

19. In an attachment for talking machines of. the disk type having vertically movable -liorn arms, means for counteracting the action of centrifugal force on the needle, said means comprising an inclined plane and means governed by the Weight of said horn arm and coperating with said inclined plane to move said needle in a direction opposite to that in which the centrifugal force acts.

20. An attachment for talking machines of the disk type, comprising an inwardly projecting brake applying means, and means controlled by the Weight of the horn arm for governing the action of said brake applying means. and means continuously acting on said horn arm tending to move it with the stylus toward the center of therecord disk.

2l. An attachment for talking machines of the disk type, con'iprising a rotative brake applying means, means controlled by the weight of the horn arm for governing the action of said brake applying means, means continuously acting on said horn arm tending to move it with the stylus toward the center of the record disk.

Q2. An attachment for talking machines of the disk type, comprisingv an inwardlY projecting rotative brake applying means, means controlled by the w ight of the horn arm for governingthe action of said brake applying means, and means continuously acting on said horn arm tending to move it With the stylus toward the center of the record disk.

An attachment for talking machines of the disk type, a brake applying means, a disk cleaning means, and means governed hy the Weight of the horn arm for simultaneously releasing the brake applying means and projecting the disk cleaning means into position over the disk.

Q4. An attachment for talking machines of the disk type, a brake applying means, a disk cleaning means, means governed by the weight of the horn arm for simultaneously releasing the brake applying means and projecting thedisk cleaning means into position over the disk, and for simultaneously permitting said brake applying means l Ulf comprising an inclined plane in operative l engagement. with the horn arm to cause said horn arm lto drift in a direction opposite to tinuously move the sound box toward the that in which the centrifugal force acts.

Center of the record disk.

n 26. In talking maChne Of the dSk typ@ wherein is included a horn larm having horil. 5 zontal and vertical movement', inezms'for Witnesses: I simultaneously resilientiy supporting said S. A. D. JoNEs, horn arm and causing it to drift and con- O'mrs HILL.. 

